MARBLE ROCK – Due to routine cleaning and inspection of the town’s water tower on July 20, the City of Marble Rock is advising residents to boil water during the maintenance and until bacteria samples come back clean.

ROCK RAPIDS –Environmental specialists from the DNR’s Spencer field office were called to an accident scene after a semi flatbed trailer rolled into the ditch near Highway 9 about six miles west of Rock Rapids Tuesday morning.

WINDSOR HEIGHTS - An ozone monitoring site in Scott County Park north of Davenport recorded an eight-hour average ozone level of 71 parts per billion yesterday, June 13. The U.S. Environmental Protection Agency’s eight-hour average health threshold is 70 parts per billion.

DES MOINES – A railroad tanker carrying 25,000 gallons of animal fat leaked along tracks Monday from Missouri Valley in Harrison County to Fairfax in Linn County, a distance of approximately 200 miles.

NEW MARKET – Even though water pressure has been restored, a boil advisory will remain in place for the city of New Market in Taylor County until bacteria samples can be collected to ensure the water is safe.

MANCHESTER – The Iowa Department of Natural Resources will continue to monitor a small tributary of Golden Branch northeast of Ryan in Delaware County after a tank with dilute herbicide fell into the stream Saturday morning.

The U.S. Environmental Protection Agency’s (EPA) 24-hour health threshold for PM2.5 is 35 micrograms per cubic meter (µg/m3). Exceedances of this threshold were recorded at several monitoring sites in Iowa on Saturday.

WINDSOR HEIGHTS – Fine particulate (PM2.5) levels near federal health standards are expected in northern and central Iowa today. A plume of smoke originating from Canadian wildfires is passing southward through the state. This smoke plume caused a spike in fine particle levels in northern Iowa this morning that may last for several more hours.

SPIRIT LAKE – The Great Lakes Sanitary Sewer District discovered a wastewater discharge at 10:30 a.m. following an electrical failure at a N. Lagoon Street pumping station located in the city of Spirit Lake.

WEBSTER CITY – A Thursday morning complaint about a fuel sheen on a drainage ditch east of Webster City led DNR field investigators to a leaking storage tank at the Stonega Branch of United Cooperative east of Webster City.

EDDYVILLE – The Iowa Department of Natural Resources is investigating a fish kill following a discharge of partially treated wastewater into an unnamed tributary of the Des Moines River early Thursday morning.